added README

README.md

+# Infoscreen
+
+## Test
+
+This Website can be run locally for testing purposes with `python3 -m http.server` or any other HTTP Server
+
+## Adding Ads
+
+If you wish to add an ad to the infoscreen simply place an image in `panels/werbung/img` and change the `down` section in `config/layouts/default.json` to something like this
+
+```
+"down": {
+    "type": "cycler",
+    "duration": 5,
+    "panels": [
+        {
+            "type": "panel",
+            "name": "mensaPlan"
+        },{
+            "type": "panel",
+            "name": "werbung",
+            "config": {
+                "files": [
+                    {
+                        "filename": "IMAGENAME.png",
+                        "startdate": "NEVER",
+                        "enddate": "NEVER"
+                    }
+                ]
+            }
+        }
+    ]
+}
+
+```
+
+start- and enddate should just be NEVER to activate this immediatly
+